does it show up as a SALE? under your SALES tab on your CF funnel? if not then please follow the instructions to setup the webhook URL and 3rd Party Products correctly
Otherwise, I will need to investigate the case more deeply generally speaking, when a customer optes in to your funnel using email X, and then they purchase your products using Paypal email for person/business Y. the purchase info will be setup for the Y email not X. that's just how CF works it treats each separate email address as a unique lead.
Hope that helps, Let me know if you have any more questions,